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This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Unit of Measure

Specifications

Series

N/A L69300

Cup Part Number

N/A JL69310

Design Units

N/A METRIC

Dimensions

D - Cup Outer Diameter

N/A 63.000 mm2.4803 in

C - Cup Width

N/A 13.500 mm0.5315 in

Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1 N/A 1.27 mm0.050 in

Da - Cup Frontface Backing Diameter

N/A 60.96 mm2.40 in

Db - Cup Backface Backing Diameter

N/A 55.88 mm2.20 in

Factors

K - Factor2 N/A 1.4
e - ISO Factor3 N/A 0.42
Y - ISO Factor4 N/A 1.44

G1 - Heat Generation Factor (Roller-Raceway)

N/A 18.4

G2 - Heat Generation Factor (Rib-Roller End)

N/A 15
Cg - Geometry Factor5 N/A 0.0692
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 Geometry constant for Lubrication Life Adjustment Factor a3l.
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